In this paper we construct a Ricardian model of trade in vertically-differentiated products between a developing country and the (developed) rest of the world. Despite labour being the only factor of production in this model, tariffs (in addition to income taxes) have distributional consequences...

We analyze vertical product differentiation in a model where a good’s quality is unobservable to buyers before purchase, a continuum of quality levels is technologically feasible, and minimum quality is supplied under competitive conditions. After purchase the true quality of the good is...

We consider a therapeutic market with potentially three pharmaceutical firms. Two of the firms offer horizontally differentiated brand-name drugs. One of the brand-name drugs is a new treatment under patent protection that will be introduced if the profits are sufficient to cover the entry...

This paper examines how product market competition affects firms’ timing of adopting a new technology as well as whether the market provides sufficient adoption incentives. It shows that adoption dates differ not only among symmetric firms but also among markets with Cournot and Bertrand...

This paper develops an original model of product differentiation, to contribute to the debate about theregulation and finance of public television. It goes beyond the conventional analysis in this topic, byshowing the spill-over effects that a public broadcaster can have upon commercial...

We study the competitive effects of restricting direct access to secondary care by gatekeeping, focusing on the informational role of general practitioners (GPs). In the secondary care market there are two hospitals choosing quality and specialisation. Patients, who are ex ante uninformed, can...

Demand for oil is very price inelastic. Facing such demand, an extractive cartel induces the highest price that does not destroy its demand, unlike the conventional Hotelling analysis: the cartel tolerates ordinary substitutes to its oil but deters high-potential ones. Limit-pricing equilibria...

Merchant guilds have been portrayed as “social networks“ that generated beneficial “social capital“ by sustaining shared norms, effectively transmitting information, and successfully undertaking collective action. This social capital, it is claimed, benefited society as a whole by...